ERR_get_error(3) OpenSSL ERR_get_error(3)NAME
ERR_get_error, ERR_peek_error, ERR_peek_last_error, ERR_get_error_line,
ERR_peek_error_line, ERR_peek_last_error_line, ERR_get_error_line_data,
ERR_peek_error_line_data, ERR_peek_last_error_line_data - obtain error code and data
SYNOPSIS
#include <openssl/err.h>
unsigned long ERR_get_error(void);
unsigned long ERR_peek_error(void);
unsigned long ERR_peek_last_error(void);
unsigned long ERR_get_error_line(const char **file, int *line);
unsigned long ERR_peek_error_line(const char **file, int *line);
unsigned long ERR_peek_last_error_line(const char **file, int *line);
unsigned long ERR_get_error_line_data(const char **file, int *line,
const char **data, int *flags);
unsigned long ERR_peek_error_line_data(const char **file, int *line,
const char **data, int *flags);
unsigned long ERR_peek_last_error_line_data(const char **file, int *line,
const char **data, int *flags);
DESCRIPTION
ERR_get_error() returns the earliest error code from the thread's error queue and removes
the entry. This function can be called repeatedly until there are no more error codes to
return.
ERR_peek_error() returns the earliest error code from the thread's error queue without
modifying it.
ERR_peek_last_error() returns the latest error code from the thread's error queue without
modifying it.
See ERR_GET_LIB(3) for obtaining information about location and reason of the error, and
ERR_error_string(3) for human-readable error messages.
ERR_get_error_line(), ERR_peek_error_line() and ERR_peek_last_error_line() are the same as
the above, but they additionally store the file name and line number where the error
occurred in *file and *line, unless these are NULL.
ERR_get_error_line_data(), ERR_peek_error_line_data() and ERR_get_last_error_line_data()
store additional data and flags associated with the error code in *data and *flags, unless
these are NULL. *data contains a string if *flags&ERR_TXT_STRING. If it has been allocated
by OPENSSL_malloc(), *flags&ERR_TXT_MALLOCED is true.
RETURN VALUES
The error code, or 0 if there is no error in the queue.
SEE ALSOerr(3), ERR_error_string(3), ERR_GET_LIB(3)HISTORY
ERR_get_error(), ERR_peek_error(), ERR_get_error_line() and ERR_peek_error_line() are
available in all versions of SSLeay and OpenSSL. ERR_get_error_line_data() and
ERR_peek_error_line_data() were added in SSLeay 0.9.0. ERR_peek_last_error(),
ERR_peek_last_error_line() and ERR_peek_last_error_line_data() were added in OpenSSL
0.9.7.
1.0.1e 2013-02-11 ERR_get_error(3)